Note that all these links are external and we cannot provide support on the circuits or offer any guarantees to their accuracy.
Some circuits would be illegal to operate in most countries and others are dangerous to construct and should not be attempted by the inexperienced.
If you would like general assistance with a specific design question you may like to try the Electrical Engineering Stack Exchange site below, however please carefully read the help pages before posting:

There are 32 circuit schematics available in this category. Click here for all circuit diagrams. The Last circuit was added on Sunday, November 5, 2017.Please note some adblockers will suppress the schematics as well as the advertisement so please disable if the schematic list is empty.